Querying for Notifications via MarketInfo [EWS SOAP]

[tylernisonoff]

Hello, I'm having trouble querying for Notifications via MarketInfo despite being able to successfully query for other Nouns.

When sending over a NotificationQuery, my message is rejected with Header Noun NotificationMessages

What is the correct Noun to use for this type of query?

In ErcotGetNotifications.xsd I see:

                                                           -->
<xs:schema xmlns="http://www.ercot.com/schema/2007-06/nodal/ews" xmlns:xs="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.ercot.com/schema/2007-06/nodal/ews" version="0.0.2"
    elementFormDefault="qualified" attributeFormDefault="unqualified">

    <!--        Request Element     -->
    <xs:element name="NotificationQuery" type="NotificationQuery"/>
....
    </xs:complexType>

    <!--        Response Payload Element     -->
    <xs:element name="NotificationMessages" type="NotificationMessages"/>
    <xs:complexType name="NotificationMessages">
        ....
        
</xs:schema>

My header looks like (printed from python code):

 Header: {
    'Verb': 'get',
    'Noun': 'NotificationMessages',
    'ReplayDetection': {
        'Nonce': {
            '_value_1': '374986671383385',
            'Id': None,
            '_attr_1': None,
            'EncodingType': None
        },
        'Created': {
            '_value_1': '2025-01-31T01:50:17Z',
            'Id': None,
            '_attr_1': None
        }
    },
    'Revision': '1',
    'Source': '<source>',
    'UserID': '<user-id>',
    'MessageID': None,
    'Comment': None,
    '_value_1': None
}

My NotificationQuery seems fine, as I can put in random other Nouns, Such as OutageSet and receive a response (no results).

But when trying to use NotificationMessages, which appears to be what I should use as my Noun based on the xsd, I get:

    'Reply': {
        'ReplyCode': 'FATAL',
        'Error': [
            'Invalid Noun'
        ],
        'Timestamp': datetime.datetime(2025, 1, 30, 19, 50, 18, 200000, tzinfo=<FixedOffset '-06:00'>),
        'ID': [],
        '_value_1': None
    },

[tylernisonoff]

Update: I found https://developer.ercot.com/applications/ews/Get%20Notifications/#Get-Notifications

Going to explore that and report back here